SemiNex Infrared Lasers
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An infrared laser is an inexpensive, high power laser with many capabilities. An infrared diode laser is made when an intrinsic semiconductor’s electrical properties are altered by introducing impurities to the surface of a crystal wafer. When semiconductor layers meet, charge carriers combine and the electrical current in the laser’s energy is released as light. Infrared lasers are small and light and require very little power.
Infrared light is light which is not visible to the naked human eye. Because infrared light is “invisible,” the light is less damaging to eye; the wavelength is absorbed by the cornea rather than the retina, eliminating the risk of serious damage to the eyes.
Different wavelengths of infrared light serve different purposes. Infrared lasers with wavelengths of 1310nm, 1550nm, and 1625nm are ideal for fiber optic communications, whereas infrared lasers of 1480nm function well as pumps for optical amplifiers. However, there are other applications for infrared laser light as well.
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SemiNex Corporation makes and distributes infrared lasers, which are ideal for medical applications such as acne removal, skin wrinkle reduction, and skin ablation and can also be used in a range of professional laser applications in the medical industry, in free-space communications, for military applications, and in range finding.
Free Space Optics
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Many people don’t realize they use laser techn
ology daily. Free space optical communication is the transfer of data between two points with light as the transmission tool. In ancient times the Greeks communicated via polished shields to send signals in battle. In modern times, shiny shield technology has unfortunately become obsolete, but free space optics live on most commonly in remote controls. Infrared lasers are placed inside the remote and emit binary-encoded pulses to signal when different buttons have been pressed. This is why you must have a clear path between the remote and your TV’s receiver for the remote control to work.Infrared Light and the Military
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Infrared lasers are popular with the military for targeting. In the military, infrared lasers are primarily used as laser target designators, which are used with precision-guided munitions to guide munitions. An infrared laser is favored when directing munitions at live targets because light from an infrared laser cannot be seen by the human eye.
Temperature Measurement using Infrared Lasers
Infrared lasers can also be used in temperature measuring. Devices can aim infrared laser light at an object and measure the electromagnetic radiation emitted from the object’s surface. This is useful in situations where a contact-digital-thermometer would be dangerous or difficult to use, such as measuring the temperature of food on a grill or a car’s engine.
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Infrared Diodes and Nonablative Facials
Infrared lasers can also be used for medical purposes. The treatment and reduction of acne, acne scars, wrinkles, and rosacea are the most popular targets for non-ablative facial treatments with diode lasers. Acne procedures destroy the sebaceous glands responsible for oil production and can help those with moderate to severe acne enjoy clear skin. Other treatments aim for collagen production by destroying dermis cells. As the cells repair themselves, collagen production is increased, giving skin a fuller, healthier look. Unlike Ablative Facials, which completely remove the epidermis causing swelling and crusty scabs and require at least a week of recovery, there is very little pain associated with nonablative procedures and virtually no downtime.
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